Rotary valve



E; W.- KLAS ROTARY VALVE Feb. 13, 1945.

Filed Dec. 9, 1942 2 Sheets-Sheet 1 I mlentor E. W. KLAS ROTARY VALVE Feb. 13, 1945.

2 Sheets-Sheet 2' Filed Dec.

Inventor Zkzl W/flas WWW Patented Feb. 13, 1945 UNITED STATES PATENT OFFICE ROTARY VALVE Earl W. Klas, Flint, Mich.

Application members, 1942, Serial No. 468,391

1Claim. (cl. iis sel in operative position and otherwise well adapted 1 for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming 1.)

part hereof, wherein like reference numerals refer to like parts throughout, and in which-.-

Figure 1 is a fragmentary side elevational view of engine equipped with my improved rotary valve.

Figure 2 is an end elevational view thereof.

Figure 3 is a longitudinal sectional view through the valve taken on a line 3-3 of Figure 2.

Figure 4 is a transverse sectional view taken on 2:,

a line [-4 of Figure 3. n.

Figure 5 is a fragmentarylongitudinal sectional view of a modified valve construction.

Figure 6 is a side elevational view of the valve sleeve of Figure 5:

Figure 7 is a view of the valve of Figure 5.

Figure 8 is a transverse sectional view taken on a line 8-8 of Figure 5, and

Figure 9 is a transverse sectional view of a modified construction of the casing.

a Referring now to the'drawings in detail. and with particular reference to Figures 1 to 4, inclusive, the numeral 5 designates the engine block having the cylinders 8 therein, each having a port 1 in its top which serves as both intake and exhaust port.

A plurality of valve bearings 8 are secured in spaced relation to the top of the block by bolts 9. Rotatably mounted in the valve bearings is a sleeve type valve l8 having openings H adapted to register with ports I, in the valve bearings, the ports 1 of the cylinder and the ports 1' being in communication. Packing nuts H are threaded to each side of the brackets to seal the ports.

Formed in the valve I! is a spiral partition I! forming an intake passage ll communicating with certain of the ports and an exhaust passage I! communicating with the remaining ports.

The intake passage islopen at one end for con-.- nection with an intake pipe II with packing collar 28 extending through a gear cover orhousing I It secured to'one end of the block 5 while the exhaust passage is open at the opposite end of the valve for connection with an exhaust manlfold ll.

A gear I8 is secured on the intake end of the valve and is operatively connected to'the engine crank shaft (not shown), through an idler gear Is.

An oil pipe 25 extends along the top'of the valve, the pipe 'having branch pipes 26 leading therefrom through the valve bearings 8 to lubricate the valve.

The inner end of the intake pipe I4 with packing collar 28 is tapered to snugly fitinthe end of the valve l0 and a coil spring 21 mounted on the intake pipe forces the packing collar 28 against the end of the valve to seal the latter.

In the form of the invention'illustrated in Figures 5 to 9 a cylindrical water jacket 25 is secured to the top of the block'and journaled for rotation in the jacket is a sleeve 30. Rotatably mounted in the sleeve is a valve 3|, the sleeve and. valve having ports 32 and 33 respectively adapted to register with the ports of the cylinders during a predetermined period of rotation of the sleeve and valve. The valve 3| likewise has thespiral partition 34 therein forming the intake and exhaust passages 35 and 36 respectively.

Gears 39 and 40 on the intake ends of the 'sleeve and valve respectively are driven from the engine crankshaft as heretofore explained through idler gears (not shown), the gears'being arranged to oppositely rotate the sleeve and valve. I

f In Figure 9 the water Jacket is shown constructed of upper and lower sectipns 4| and 42 secured by bolts 48.

The sleeve is formed with apertures 44 as shown in Figure 6 by means of which oil is fed to the outer surface of .the valve by the oil pipe 48 for lubricating the valve and sleeve. Having described'the invention, what is claimed as new is: x

A rotary valve for controlling intake and exhaust of an engine cylinder and comprising a having ports-in its'si'de walls, a. spiral partition in the member separating the interior thereof into intake and exhaust passages, said intake passage being closed at one end and said exhaust passage being closed at a relative opposite end of the member, intake and exhaust pipes 00B:

nected to the respective ends of the member for 50 communication with the respective. passages,

spaced apart valve bearings secured to the en- -gine and having ports. communicating with the engine cylinders. packing nuts threaded to the sides of the valve bearings for sealing the latter,

and means for rotating the member inthe valve bearings. said ports of the cylindrical member registering with the ports of the valve bearings during a predetermined period of rotation of the member.

- EARL W. SLAB. 

